4 pole 3 phase breaker

originalbigal · May 28, 2023

I have above mentioned breaker which does not have any markings to show which is the neutral pathway, I wish to fit it directly above a 3 phase 4 way surge protector which has its neutral on the right hand side and so would ideally want to connect the neutral above it on the right hand side of the breaker. Its being situated in a two tier consumer unit, in France its normal to put the neutral to the left hand side and its usually marked as such. The breaker as 4 symbols for magnetic cut off and disconnection of all 4 pathways, all similar for each pathway. Any advice welcomed.

pc1966 · May 28, 2023

A photo might help!

In general 4P MCB as just that, 4 identical thermal-magnetic units mechanically linked so if any trip they all go. As such it matters not how you use it, but matching other devices allocation of L1-L3 & N makes sense.

originalbigal · May 29, 2023

pc1966 said:
A photo might help!

In general 4P MCB as just that, 4 identical thermal-magnetic units mechanically linked so if any trip they all go. As such it matters not how you use it, but matching other devices allocation of L1-L3 & N makes sense.

Thanks, thats what I assumed , many different manufactures make similar models to mine, again unmarked. As to the photo I will need to join another forum to teach me how to do that!